The paper presents an analysis of the adaptation of orthography and semantics of russianisms in Anthony Burgess's novella A Clockwork Orange. Orthography of russianisms is formed according to: a) the pronunciation of the model, b) the orthography of the model, c) combination of pronunciation and orthography of the model, and according to f) the omission of Russian palatalized consonant. The paper also presents comparison of graphemes/signs used in transliteration of Cyrillic alphabet with those used in the adaptation of orthography of russianisms in a slang named Nadsat. Graphememes/signs of four transliteration systems were compared and analysed. Semantics of russiansims is adapted according to: 1) Zero semantic extension, 2) Restriction of meaning, further subdivided into: a) restriction in number of meaning, and b) restriction in semantic field; and the last degree 3) Expansion of meaning, further subdivided into a) expansion in number of meaning and b) expansion in semantic field.